Oscars 2015: White, icy shades dominate the red carpet

Hollywood beauties Patricia Arquette, Lupita Nyong'o, Marion Cotillard, Jessica Chastain and Lady Gaga opted for old-school elegance in white and blue demure gowns at the 87th Academy Awards despite rain threatening to play spoilsport with their designer outfits.

Last year's Best Supporting Actress winner for 12 Years a Slave, Lupita Nyong'o was shimmering in heavily embellished Calvin Klein gown which had a a pearl-embellished bodice. (Source: AP)

Reese Witherspoon was gorgeous in an off-the-shoulder Tom Ford gown. (Source: AP)

Newly engaged Lady Gaga, who is also going to perform at the oscars this year, added a pop of colour with red plastic gloves on the red carpet. Lady Gaga was wearing custom Azzedine Alaïa. (Source: AP)

Julianne Moore, this year's Best Actress nominee for her role in Still Alice, was shining in a custom Chanel dress.

This year's Best Actress nominee Marion Cotillard was shining in a white sequined Dior Couture gown with a polka dot lace layering. (Source: AP)

Cate Blanchett, who is one of the presenters at this year's Oscars, was beautiful in a black Margiela dress but what caught everyone's attention was her huge turquoise necklace. (Source: AP)

Jessica Chastain wore a navy blue a double-layered Givenchy gown . (Source: Reuters)

Dakota Johnson, who made her Hollywood debut with Fifty Shades of Grey, was red hot in a Saint Laurent dress on the Oscars 2015.

Rosamund Pike, another Best Actress nominee this year, flaunted her post-baby body in a red form-fitting dress with a split up the front. (Source: AP)

Jennifer Lopez wore a flowing Elie Saab gown on the Oscars 2015 red carpet. (Source: AP)

Felicity Jones, who is also nominated for Best Actress this year, looked elegant in a light grey Alexander McQueen dress with a detailed bodice and floor-sweeping skirt. Felicity was in Theory Of Everything. (Source: AP)

Nicole Kidman accessorised her mint green strapless gown with a red belt on the red carpet. We love it. (Source: AP)

Avatar actress Zoe Saldana looked flawless in her form-fitting Atelier Versace dress which she wore with Versace shoes and Neil Lane jewellery.

Shakespeare in Love actress Gwyneth Paltrow looked beautiful in a Ralph & Russo Couture custom-made pale pink silk gown which had a giant pink flower on her shoulder. (Source: AP)

Naomi Watts showed some skin at the 2015 Academy Awards. (Source: AP)

Jennifer Aniston looked stunning in a Versace gown. She was joined on the red carpet by her fiance Justin Theroux.

Emma Stone, nominated for her role in 'Birdman', was sparkling in a yellow tone Elie Saab gown with a thigh high slit. (Source: AP)

Oscars winner Jennifer Hudson looked absolutely stunning in her yellow strapless dress. (Source: AP)

Host Neil Patrick Harris and husband David Burtka on the Oscars 2015 red carpet. Neil was seen wearing a custom Brunello Cucinelli tuxedo and tie, custom Hamilton shirt, while David was seen in a Calvin Klein Collection tuxedo, custom Hamilton shirt. (Source: AP)

Best Actor nominee for Birdman, 63-year-old Michael Keaton was handsome in black Ralph Lauren tuxedo. This is Keaton's first Oscars nomination. (Source: AP)

Oscars Best Actor nominee Eddie Redmayne arrived hand in hand with his wife Hannah Bagshawe at the Oscars. (Source: AP)

Patricia Arquette looked gorgeous in a monochrome asymmetrical gown designed by her friend Rosetta Getty. (Source: AP)

Anna Kendrick was pretty in pink - She stunned in a floor-length Thakoon sleeveless gown. (Source: AP)

Margot Robbie, who is also one of the presenters, was sizzling in a plunging black Saint Laurent gown. (Source: AP)

Benedict Cumberbatch with his wife Sophie Hunter, who is pregnant with their first child. (Source: AP)

John Legend arrived in style on the red carpet with his beautiful wife Chrissy Teigen, who wore a Zuhair Murad gown wqith a thigh high slit.

John Legend and rapper Common have been nominated for the Best Original Song Award for their song 'Glory' from 'Selma'. (Source: AP)

John Travolta walked the red carpet with his wife Kelly Preston, who was lovely in a blue strapless gown.

Meryl Streep wore black and white - velvet maxi skirt and blazer with a delicate camisole. (Source: AP)

Zendaya was feeling the moment. Of her slinky bright white off-the-shoulder Vivienne Westwood gown, her long braids loose, she told the AP at the Dolby Theatre in Los Angeles: ``It makes me feel very goddess.'' (Source: AP)

Channing Tatum's wife Jenna Dewan-Tatum rocked a plunging white dress.

Keira Kngithley dressed her baby bump in a beige chiffon gown. (Source: AP)

Viola Davis looked gorgeous on the Oscars 2015 red carpet wearing a Zac Posen dress, Stuart Weitzman shoes. (Source: AP)